View clinical trials related to Tachycardia.
Filter by:Patients with cardiac channelopathies needing restorative dental treatment will be included in two sessions of the study, using local dental anesthetic: lidocaine 2% with epinephrine and lidocaine 2% without vasoconstrictor. The safety of the use of two cartridges (3.6 mL) will be evaluated. The patients will be their own control and will be assessed by Holter monitoring for 28 hours, blood pressure measurement and anxiety measuring.
Postural orthostatic tachycardia syndrome (POTS) occurs in approximately 500,000 Americans, but predominates in women with a 5:1 ratio. Patients with POTS experience debilitating tachycardia upon postural changes such as standing that impairs their quality of life. Tachycardia is clinically defined as a heart rate greater than 100 beats/min; and in POTS patients, the prolonged heart rate increase is greater than 30 beats/min or increases to 120 beats/min within the first ten minutes of a diagnostic tilt table test without postural hypotension. There are currently no effective treatment methods for POTS. However, several studies suggest Ivabradine could be a main treatment option for POTS because Ivabradine specifically inhibits the f-channels (If) within the sinoatrial (SA) node, which slows the heart rate. Currently in the US, Ivabradine is mainly prescribed to treat chronic heart failure. It is well tolerated in patients, but it is not commonly prescribed for POTS. It has been also used for treatment of inappropriate sinus tachycardia with good benefit. The hypothesis for this experiment is that Ivabradine will reduce tachycardia and improve functional status in patients with POTS.
This study is intended to compare the feasibility, safety and efficacy of a zero-fluoroscopic approach with conventional fluoroscopic approach as performing catheter ablation of right atrial arrhythmias.
Contextualization: Exercise is a common triggers of bronchospasm in patients with asthma and healthy subjects. To prevent these symptoms frequently they have to use Short-Acting Beta2-Agonists. However, the cardiovascular effects of salbutamol during and after exercise remain poorly known. Objective: To evaluate the effect of salbutamol on heart rate and blood pressure during exercise in patients with moderate or severe asthma and healthy individuals. Methods: A randomized, double-blind, crossover study will be conducted which 13 individuals with moderate or severe persistent asthma and 13 healthy individuals aged between 20 to 59 years. Patients will perform a maximal effort test on 2 nonconsecutive days, with either 400mcg Salbutamol or 4 placebo puffs. The order of use of placebo or salbutamol will be drawn. During the protocol, heart rate, blood pressure, perception of exertion and peak expiratory flow will be monitored.
This study is aimed to compare the feasibility, safety and efficacy of a zero-fluoroscopic approach using Ensite NavX with conventional fluoroscopic approach using Ensite NavX plus fluoroscopy for the ablation of paroxysmal supraventricular tachycardia.
This is a clinical investigational plan (CIP) for the "Clinical Study to Confirm MRI Safety and Effectiveness Using SJM Cardiac Rhythm Management Systems (ASSURE MRI)". This study intends to enroll patients who meet standard bradycardia or tachycardia indications and have already been implanted with one of the SJM device/lead combinations listed in this protocol. The objective of this study is to confirm the safety and effectiveness of each of the four SJM device/lead combinations in an MRI environment. This clinical investigation is sponsored by St. Jude Medical.
The purpose of this study is to demonstrate the technical feasibility of the SERF Catheter and SERF Cardiac Ablation System to eliminate or control ventricular tachycardia (VT)
The purpose of this research is to test the clinical value of a new P-wave sensitive recording vector compared to a standard ECG limb lead II vector from similar easy-to-use long-term cardiac rhythm monitoring patch systems, the Carnation TM Ambulatory Monitoring (CAM) System and the Zio-XT iRhythm. The P-wave is a critical aspect of the electrocardiogram. The purpose of this study is to see if the P-wave centric focus of the CAM system improves arrhythmia diagnosis.
Evaluate the operation of the Implantable Subcutaneous String Defibrillator (ISSD) system in patients who require an Implantable Cardioverter Defibrillator (ICD) using an emulator.
Following product approval, confirmation of appropriate VF episode detection after MRI exposure of the ProMRI ICD/CRT-D systems and to evaluate left ventricular pacing threshold changes post-MRI.